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B & K Proline 888-574HC Quarter Turn Ceramic Cartridge for 12″ Sillcock

Bright brass stem and cartridge with red rubber o-rings black rubber washers and stainless washers and screw.
B & K Proline 888-574HC Quarter Turn Ceramic Cartridge for 12" Sillcock - Image 2
Bright brass stem and cartridge with red rubber o-rings black rubber washers and stainless washers and screw.
B & K Proline 888-574HC Quarter Turn Ceramic Cartridge for 12" Sillcock - Image 4

chat iconWHAT OUR CUSTOMERS SAY…

“I was at my witts end with a 39 year old American Standard faucet. It had been leaking for many, many months so I contacted American Standard. They referred me to Noel’s Plumbing. My faucet would not have been able to be replaced without removing the whole tub. They immediately contacted me and told me what to do. They stayed with me the whole time till I found the problem although they didn’t get a sale out of me they did fix my problem no more leaky faucet, I have them in my contacts now and will use them anytime I have a plumbing problem. Thank you Noels Plumbing for the best service I’ve ever had!! ”
-as
02/22/2024

$41.27

 

The Mueller B&K 888-574HC is a 12-inch replacement stem assembly designed specifically for quarter-turn, anti-siphon, frost-free sillcocks. It is used to repair outdoor faucets that have developed leaks or failed internal flow control, typically serving as a direct replacement for B&K models 104-821 through 104-831 and 104-791 through 104-799.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 75721 Category: Tag:

Repair your leaky outdoor faucet with the genuine B&K ProLine 888-574HC 12-inch Stem Repair Kit. Designed for fast, reliable repair of 12-inch anti-siphon frost-free sillcocks, this complete kit replaces the internal components of popular 1/4 turn faucet models, ensuring smooth, leak-free operation.

 

888-574HC

 

  • The kit typically includes the stem assembly, washers, and packing material needed for installation.
  • Stem measures 15 1/8″

 

Customer submitted images. 

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“The vacuum breaker on my outdoor spigot failed and Noel's Plumbing was the only placeI could find that had the appropriate mfr. part. I sent a text with photos on Wednesday evening to make sure the part I found was correct. In less than 2 hours later, I had a reply confirming it was the correct part. Placed my order that evening and received the part on Saturday afternoon (about 2.75 days) and my plumbing issue was resolved! I highly recommend - I really appreciated the prompt and pleasant response. ”
-Kimberly S.
04/25/2026
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